A transmission that is operated manually with a gear lever and a clutch pedal WordNet 3.0 & Open English WordNet

A manual transmission, also known as manual gearbox, standard transmission, or stick shift, is a multi-speed motor vehicle transmission system, where gear changes require the driver to manually select the gears by operating a gear stick and clutch. Wikipedia

A part of a car Wikipedia Disambiguation

Mechanical transmission which shifts gears by the action of the driver's hand on the gearstick or gear lever, rather than automatically; a manual gearbox. Wiktionary